#include <stdio.h>
#include <stdlib.h>

int main ()
{
    char card_name[3];
    int count = 0;
    while ( card_name[0] != 'X' )
    {

        puts("enter card name: ");
        scanf("%2s", card_name);
        int val = 0;
        switch(card_name[0])
        {
            case 'K':
            case 'Q':
            case 'J':
                val = 10;
                break;
            case 'A':
                val = 11;
                break;
            case 'X':
                continue;
            default: 
                val = atoi(card_name);
                if ((val < 1) || (val > 10))
                {
                    puts("wrong card!\n");
                    continue;
                }
        }

        if ( val > 2 && val < 7 )
            count++;
        else if (val == 10)
            count--;
        printf("Card value: %i\n", count);
    }
    return 0;
}